Product Description
Product name:Magnesium Hydroxide
Product name:Mg(OH)2
Cas:1309-42-8
Description:Magnesium hydroxide, scientifically denoted by the chemical formula Mg(OH)2, is a versatile inorganic compound that typically presents as a fine white amorphous powder or as colorless hexagonal columnar crystals with a crystalline structure. Classified as a moderately strong base, it exhibits distinct chemical and physical properties that define its behavior in various environments.
In terms of solubility, magnesium hydroxide demonstrates a very low solubility in water, a characteristic that contributes to its role in certain applications where controlled reactivity is essential. However, it readily dissolves in acidic solutions and ammonium salt solutions due to its basic nature, which allows it to undergo neutralization reactions. This solubility profile makes it valuable in diverse fields, from formulations to industrial processes.
As a moderately strong base, magnesium hydroxide can partially dissociate in aqueous media, releasing hydroxide ions (OH-) to neutralize excess acids. This property underlies its use as an antacid in medicine, where it effectively alleviates symptoms of acid indigestion by counteracting stomach acidity. Additionally, its thermal stability and ability to decompose into magnesium oxide and water at elevated temperatures make it a suitable flame retardant in polymer materials, as the endothermic decomposition process helps suppress combustion.
The compound's physical form-whether as an amorphous powder or crystalline structure-also influences its applications. Amorphous magnesium hydroxide often offers a larger surface area, enhancing its reactivity in adsorption or catalytic processes, while the crystalline form may be preferred for applications requiring structural integrity or specific particle morphology. Overall, magnesium hydroxide's combination of moderate basicity, selective solubility, and versatile physical states contributes to its wide-ranging utility in industries spanning pharmaceuticals, environmental treatment, materials science, and beyond.
Product Parameters
| Product Name |
Magnesium Hydroxide |
| Synonym |
Powder |
| Model |
M-10 |
| Appearance |
White Powder |
| MgO/Mg(OH)2 % |
62.0/89.9min. |
| Insoluble substance % |
≤5.0 |
| Calcium oxide (CaO) % |
≤1.8 |
| Iron oxide (Fe2O3) % |
≤0.6 |
| H2O % |
≤0.5 |
| Whiteness % |
≥89 |
| Particle Size D50 μm |
7.0~10.0 |
| Loss On Ignition % |
30±1 |
Application
The flame-retardant mechanism of magnesium hydroxide in rubber systems is rooted in its chemical and physical properties. As a filler, it disrupts the combustion cycle by absorbing heat during decomposition, which reduces the temperature at the material surface and delays the degradation of the rubber matrix. Simultaneously, the released water vapor dilutes the concentration of flammable gases generated during burning, while the residual magnesium oxide acts as an insulating layer to prevent further heat transfer. This multi-faceted approach to fire resistance makes magnesium hydroxide a preferred additive in rubber applications where safety is critical, such as in automotive interiors where flammability standards are stringent, or in industrial conveyor belts that may be exposed to high temperatures or ignition sources.
Natural rubber, synthetic rubber, and other elastomeric materials can be significantly enhanced when magnesium hydroxide is incorporated during their manufacturing processes. This inorganic compound, when added to rubber matrices, imparts flame-retardant characteristics that elevate the safety profile of various rubber products. For instance, in the production of automotive interior components, conveyor belts, and rubber hoses, the inclusion of magnesium hydroxide serves a dual purpose: it not only suppresses combustion by releasing water vapor through endothermic decomposition at elevated temperatures but also forms a protective char layer that acts as a thermal barrier, inhibiting the spread of flames.
When producing building materials such as fireproof boards and insulation materials, adding industrial-grade magnesium hydroxide can improve the fire resistance and thermal insulation properties of the materials and enhance the fire prevention and insulation effects of buildings.Moreover, the incorporation of magnesium hydroxide into rubber does not compromise the material's mechanical properties significantly when properly formulated. It can be evenly dispersed in both natural and synthetic rubber matrices-including but not limited to styrene-butadiene rubber (SBR), ethylene-propylene-diene monomer (EPDM), and neoprene-thanks to its compatibility with various rubber polymers. This versatility allows manufacturers to tailor rubber products for specific end-use scenarios, ensuring that flame retardancy is balanced with other essential attributes like elasticity, durability, and chemical resistance. As a result, rubber components embedded with magnesium hydroxide find extensive use in industries where fire safety is non-negotiable, providing a reliable solution for enhancing the operational security of products ranging from vehicle interiors to heavy-duty industrial hoses.
Packaging & Shipping
Packing: Package in 25kg bag, also accpet customer OEM packing.
Storage: Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Certifications and Reviews
Company Profile
Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service.
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!
FAQ
Q: How long is your delivery time?
A: It usually takes 7-10 days if the goods are in stock, or 10-15 days if the goods are not, depending on the quantity ordered.
Q: Can you support OEM ?
A: Yes, we can make products as your request.
Q: Do you provide samples?
A: Yes, we could offer the sample for free by requests but are not responsible for the freight cost.
Q: What payment terms do you accept?
A: We accept T/T, L/C at sight;
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